How beautiful my brother is
Assuming binita is bonita, then esta prima bonita is: This pretty cousin.
It means, "You are/she/it is pretty." 'Bonita' is a feminine adjective, so it cannot mean "He is pretty." However, since 'esta' has no accent on the 'a', it could mean 'this', and the phrase, 'this pretty girl/woman'
Your wife is so pretty
"Como es tu hermano" means "What is your brother like?" in English. It is a question asking for a description or characteristics of your brother.
Tienes un hermano in English means have a brother.
It means "the brother".
Half Brother
It means "brother".
Tener un hermano amable is: to have a nice brother.
"La isla bonita" translates to "the beautiful island" in English.
It can be translated to English as followed. This or this is.
It is deactivated.